Eduction unit

Details Eduction unit Eduction unit

1978-11-07

1980-07-22

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Bi-directional flow valves

137205, 137351, 137578, 141 65, 210117, 210241, B08B 908, B08B 1300

Patent

active

042134790

ABSTRACT:
A portable eduction unit includes a tank, a single first hose for extending into a source of solids and liquid, such hose being connected to the tank through a check valve which opens in response to a partial vacuum in the tank. A hose within the tank has one end supported by a float and communicates with the first hose through a check valve that opens in response to pressurization of the tank, and a shut-off valve for controlling the flow between the first-mentioned hose and the check valves.

REFERENCES:
patent: Re27346 (1972-04-01), Naylor
patent: 2664911 (1954-01-01), Thompson et al.
patent: 3424186 (1969-01-01), Sparks
patent: 3621893 (1971-11-01), Nishimura
patent: 3971400 (1976-07-01), Thompson
patent: 4057364 (1977-11-01), Bratschitsch

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